Update Crashpad to b47bf6c250c6b825dee1c5fbad9152c2c962e828

third_party/crashpad/crashpad/util/misc/uuid.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
 #if !defined(__STDC_FORMAT_MACROS)
 #define __STDC_FORMAT_MACROS
 #endif
 
 #include "util/misc/uuid.h"
 
 #include <inttypes.h>
 #include <stdio.h>
 #include <string.h>
 
 #include "base/logging.h"
+#include "base/rand_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/sys_byteorder.h"
 #include "util/stdlib/cxx.h"
 
 #if defined(OS_MACOSX)
 #include <uuid/uuid.h>
 #endif  // OS_MACOSX
 
 #if CXX_LIBRARY_VERSION >= 2011
@@ skipping 67 matching lines @@
   InitializeFromBytes(uuid);
   return true;
 #elif defined(OS_WIN)
   ::UUID system_uuid;
   if (UuidCreate(&system_uuid) != RPC_S_OK) {
     LOG(ERROR) << "UuidCreate";
     return false;
   }
   InitializeFromSystemUUID(&system_uuid);
   return true;
+#elif defined(OS_LINUX) || defined(OS_ANDROID)
+  // Linux does not provide a UUID generator in a widely-available system
+  // library. uuid_generate() from libuuid is not available everywhere.
+  base::RandBytes(this, sizeof(*this));
+
+  // Set six bits per RFC 4122 §4.4 to identify this as a pseudo-random UUID.
+  data_3 = (4 << 12) | (data_3 & 0x0fff);  // §4.1.3
+  data_4[0] = 0x80 | (data_4[0] & 0x3f);  // §4.1.1
+
+  return true;
 #else
 #error Port.
 #endif  // OS_MACOSX
 }
 
 #if defined(OS_WIN)
 void UUID::InitializeFromSystemUUID(const ::UUID* system_uuid) {
   static_assert(sizeof(::UUID) == sizeof(UUID),
                 "unexpected system uuid size");
   static_assert(offsetof(::UUID, Data1) == offsetof(UUID, data_1),
@@ skipping 17 matching lines @@
                             data_5[5]);
 }
 
 #if defined(OS_WIN)
 base::string16 UUID::ToString16() const {
   return base::UTF8ToUTF16(ToString());
 }
 #endif  // OS_WIN
 
 }  // namespace crashpad